Forming Mechanism of Rings in Rotary-Kiln for Ozidized Pellet
The grate-kiln process has been widely used for preparation of oxidized pellet in China. However, the ringforming is an outstanding problem in practice. In this paper, the characteristics and forming mechanisms of rings in rotary kiln for oxidized pellets were investigated. It could be found that the accretion concretion of powders in kiln accounts for forming of the rings, and the recrystallization of Fe2O3 between particles based on solid-state diffusion made the powder connect with each other and adhered on the inner face of kiln. Tests were carried out to simulate ringforming by briquetting-roasting in lab, the results showed that properties of the powder, such as the chemical composition, particle size ect. influenced the forming of rings greatly.
ozidizing pellet rotary kiln ring (ring-forming)
JIANG Tao HE Guo-qiang GAN Min LI Guang-hui FAN Xiao-hui YUAN Li-shun
School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, Hunan, China
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
295-300
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）